C# MVC5 - Using Outputcache

Question

I recently started studying the OutputCache and its uses due to a use in a corporate system.

I’m using the OutputCache to load all menus that a user (logged in) will have access to. However, I want that every login he reload this method again (action), regardless of whether the time (Duration) sold out or not...

Does anyone know if I can do this via override GetVaryByCustomString in the Global.asax? If yes, how?

Hugs!

Answer 1

I don’t quite understand how you’re using the OutputCache in the Global.asax. Usually a decoration is made by Attribute in the Controller. In your case, it would be Action login:

    [OutputCache(Duration=int.MaxValue, VaryByParam="none")]
    public ActionResult Login()
    {
        /* Passos do seu método de login aqui */
    }

Or, still, you can use a Action to mount the menu and place the OutputCache in it. I teach that in this answer:

    [ChildActionOnly]
    [OutputCache(Duration=int.MaxValue, VaryByParam="none")]
    public ActionResult Menu()
    {
        /* Monte seu menu aqui */
    }

---

EDIT

I understood the doubt. In this case, I think it would be nice if you force the cache to expire Action of Logout:

public ActionResult Logout()
{
    var url = Url.Action("ControllerDeLogin", "Login");
    HttpResponse.RemoveOutputCacheItem(url);
    // Coloque o restante da lógica aqui.
}